Minnesota and Wisconsin DOTs Undertake $1.8B Blatnik Bridge Project

The bridge is an essential conection in the midwest.

Source : Wikimedia

November 2, 2025

Author : Patty Allen

The Minnesota and Wisconsin Departments of Transportation are undertaking a major $1.8 billion replacement of the John A. Blatnik Bridge, essential to the connection of Duluth, Minnesota, and Superior, Wisconsin.

The expansion of this significant infrastructure project kicked off with a public update meeting on October 20 in Superior, at which the project officials discussed recent successes in all areas related to engineering, permitting, and environmental documentation, and submitted all the appropriate documentation for the project to move forward.

Since???????????????? 1961, the deteriorating Blatnik Bridge has spanned St. Louis Bay with I-535. As a co-owned bridge, it has evolved into an essential commercial and freight corridor for the Twin Ports area. 

The total replacement of the Blatnik Bridge has been made feasible by over $1 billion in funding commitments from various state and federal stakeholders, despite ongoing reductions in the national infrastructure ????????????????budget.

Those involved in the project planning process tell us the bridge is failing structurally and with its geometric design, resulting in repeated traffic congestion, high crash rates, and restrictions on freight mobility. Firstly,???????????????? the new bridge can address several longstanding safety issues that have been problematic for some time. Furthermore, the bridge will be able to cater to bigger and heavier trucks, which can pass through the facility and thus enable efficient regional commerce and international trade.

The public meeting in October included key dates, from the preliminary engineering and environmental review to progress on bid-ready contract documents. The people received information about the modifications. The alterations point towards illuminating the main span, enhancing traffic mitigation, and a construction schedule that will probably commence in 2026 and continue until the following ????????????????decade.

The Blatnik Bridge project and other Duluth-area local projects, such as multimodal and interchange upgrades, are planned to facilitate access, traffic movement, and regional economic ????????????????connectivity.

The project has been a source of positive energy among local businesses and community leaders who have considered it essential for the movement of goods and the city's expansion. In addition to stressing transparency, the DOTs invited the public to be fully engaged with the proceedings by keeping track of all the news and viewing the videos, plans, and ADA accommodations through a link leading to the project-specific web ????????????????portal.

As work continues, Minnesota and Wisconsin are making strides to ensure equity and small business inclusion. The???????????????? Minnesota DOT has unveiled changes aimed at extending and improving the chances of disadvantaged business enterprises. On the other hand, Wisconsin has been holding informational sessions to appeal to diverse contractors and suppliers.

If everything goes as planned, the Blatnik Bridge replacement will be more than just an update of a vital crossing. It will also signify the states' cooperative success in propelling regional ????????????????transport.

Category : Department of Transportation State Government Bridges

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